Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Processless computer to plate precursor, and ultra-short pulse laser plate making method

An ultra-short pulse laser and treatment-free technology, which is applied in printing plates, chemical instruments and methods, printing, etc., can solve the problems of increased difficulty in plate manufacturing, complex photosensitive system, waste liquid treatment, etc., to reduce production difficulty and cost , High energy, thin beam effect

Active Publication Date: 2017-03-29
LUCKY HUAGUANG GRAPHICS +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the manufacturing process of this type of plate, a complex photosensitive chemical system is required. These heat-sensitive and photosensitive chemicals make the manufacture of the plate more difficult and costly. In addition, the development process is required when making the printing plate, and alkali is required. The developer solution of non-toxic substances and organic solvents, resulting in certain waste liquid treatment problems
[0003] A "processing-free CTP" recently put on the market still requires a complex photosensitive system. After exposure and development, it forms a lithographic printing plate required for printing. There must be a development process, but the developer used is mainly water, and some chemicals such as wetting agents, penetrants or gum arabic need to be added, so this "treatment-free CTP" is not a real free CTP. Handle Eco Edition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A treatment-free lithographic printing plate precursor, consisting of a grained metal substrate and a laser-ablative ink-loving resin layer or a UV-curable resin layer on the metal substrate, the ink-loving resin layer or UV-curable The resin layer is 0.5-5um. The metal substrate is selected from one of pure aluminum plate, aluminum alloy plate, iron plate and galvanized plate with a thickness of 0.1-0.5 mm. The metal substrate is pre-treated by electrolytic oxidation or laser engraving to form an average surface roughness of The grain size of 0.1~0.9um, in order to achieve the water retention performance and friction resistance hardness performance required for printing.

[0032] The ink-loving resin layer is composed of an organic solvent and a mass fraction of 0.1% to 25% organic pigment or dye, 5% to 65% high polymer, 2.0% to 20% adhesive and auxiliary agent dissolved in the organic solvent. agent composition; the UV-curable resin layer is composed of 0.1-25 parts ...

Embodiment 2

[0043] 1.0% acrylic oligomer, 10% epoxy resin, 25% phenolic resin, 0.1% phenylethyl alcohol oleate, 0.15% ethyl violet, 0.8% butyl hydroxyanisole (BHA), 2.0% poly Dissolve and disperse methyl siloxane in 50L ethylene glycol monoethyl ether, heat at 30~50°C to disperse and dissolve the above substances, and configure it into a coating liquid. Coat the prepared coating liquid on a surface with a roughness of 0.5, On an aluminum plate base with a thickness of 0.2mm, dry to obtain a lithographic original plate, and the thickness of the resin layer after drying is 2um.

[0044] The viscosity of the coating solution in the present invention is 2.8 centipoise, the surface tension is 22 dyn / cm, and the solid content is 5.2%.

[0045] The ultra-short pulse laser platesetter uses Ti:Sapphire mode-locked to regenerate and amplify the femtosecond laser beam. The pulse width is 94fs, the repetition frequency is 1kHz, and the center wavelength is 700nm. The beam control system includes bea...

Embodiment 3

[0048] 1.0% sodium carboxymethylcellulose, 15% modified acrylic resin, 30% modified phenolic resin, 0.1% lauryl phenylacetate, 0.18% phthalocyanine, 2.0% octadecylamine acetate, 1.0 % phenylethyl alcohol oleate, 0.8% 2,6-tertiary butyl-4-methylphenol is dispersed and dissolved in 50L ethylene glycol monoethyl ether and methyl ethyl ketone (2:1) solution, heated at 30~50°C to make the above The material is dispersed, dissolved and dispersed, and configured into a coating liquid. The configured coating liquid is coated on an aluminum substrate with a roughness of 0.5 and a thickness of 0.2 mm, and the coating is dried to obtain a lithographic printing plate precursor. After drying, the resin layer The thickness is 5um.

[0049] The viscosity of the coating solution in the present invention is 3.0 centipoise, the surface tension is 24 dyn / cm, and the solid content is 5.5%.

[0050] Use a titanium-sapphire ultra-short pulse laser platesetter, the output laser wavelength is 800nm,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Surface average roughnessaaaaaaaaaa
Center wavelengthaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a processless computer to plate precursor. The processless computer to plate precursor is composed of a metal substrate processed via roughening, and an ink-loving resin layer or an UV curable resin layer on the metal substrate, wherein the ink-loving resin layer and the UV curable resin layer contain no photoactive substance, and can be processed via laser ablation. It is not necessary for the coating layer of the processless computer to plate precursor to contain any complex photosensitive systems, coating of the metal substrate processed via roughening with the resin layer which can be processed via etching, and possesses ink resistance and ink-loving performance is enough. According to an ultra-short pulse laser plate making method, the coating layer is subjected to ultra-short pulse laser engraving so as to remove bland parts in an original pattern via ablation, form hydrophilic zones, and obtain ink-loving zones formed by images and texts, processless computer to plate with ink balance needed in lithography is obtained, and environment-friendly and pollution-free computer to plate production is realized.

Description

technical field [0001] The invention belongs to the technical field of printing and plate making, and relates to a real treatment-free lithographic printing plate (CTP plate) precursor, as well as an ultrashort pulse laser plate-making machine and a plate-making method; the processing-free lithographic printing plate precursor is suitable for Ultrashort pulse laser platemaking machine, used to make lithographic plates for printing. Background technique [0002] With the development of science and technology, CTP (Computer to Plate) technology directly prepared by computer has been more and more widely used. When exposing heat-sensitive CTP plates and ultraviolet CTP plates, light beams are used to make the heat-sensitive or photosensitive resin in the coating exchange. Linked or decomposed, the blank part of the original manuscript can be dissolved in the developer, while the graphic part remains on the printing plate substrate, forming a lithographic printing plate that mee...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D161/06C09D161/14C09D175/14C09D129/04C09D167/06C09D167/08C09D177/00C09D133/00C09D183/00C09D163/00C09D7/12B41N1/08B32B15/08B32B33/00
Inventor 王怀功张涛邵国安张刚杨青海王泳高英新
Owner LUCKY HUAGUANG GRAPHICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com